<template>
  <div class="wrapper">
    <div class="login-box">
      <div class="logo">
        <img src="../../assets/logo.png" height="120px" alt="" />
      </div>
      <!-- <h3 class="title">登录界面</h3> -->
      <div>{{ info }}</div>
      <el-form
        :model="loginForm"
        status-icon
        :rules="rules"
        ref="ruleForm"
        label-width="60px"
        class="demo-ruleForm"
      >
        <el-form-item label="账号" prop="username">
          <el-input
            type="text"
            v-model="loginForm.username"
            autocomplete="off"
          ></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input
            type="password"
            v-model="loginForm.password"
            autocomplete="off"
          ></el-input>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="submitForm('ruleForm')"
            >登录</el-button
          >
          <el-button @click="resetForm('ruleForm')">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
import jwt from 'jwt-decode'
import { mapMutations } from 'vuex'
export default {
  data() {
    var validateUser = (rule, value, callback) => {
      if (value === '') {
        callback(new Error('请输入账号'))
      } else {
        callback()
      }
    }
    var validatePass = (rule, value, callback) => {
      if (value === '') {
        callback(new Error('请输入密码'))
      } else {
        callback()
      }
    }
    return {
      info: '',
      loginForm: {
        username: '',
        password: ''
      },
      rules: {
        username: [{ validator: validateUser, trigger: 'blur' }],
        password: [{ validator: validatePass, trigger: 'blur' }]
      }
    }
  },
  methods: {
    ...mapMutations('loginModule', ['setUser']),
    submitForm(formName) {
      this.$refs[formName].validate((valid) => {
        if (valid) {
          let { username, password } = this.loginForm
          //请求登录接口-------------
          this.$api
            .getLogin({
              username,
              password
            })
            .then((res) => {
              console.log('-----', res.data)
              if (res.data.status === 200) {
                console.log(jwt(res.data.data))
                //登录成功后：1. 存储登录信息  2. 跳转网页 3. 顶部区域显示用户信息  4. 持久化
                let obj = {
                  user: jwt(res.data.data).username,
                  token: res.data.data
                }
                this.setUser(obj)
                //存储本地
                localStorage.setItem('user', JSON.stringify(obj))
                //跳转
                this.$router.push('/')
                // this.info=''
              } else {
                //账号或者密码错误
                // this.info='账号或者密码错误'
                this.$message.error('错了哦，这是一条错误消息')
              }
            })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    },
    resetForm(formName) {
      this.$refs[formName].resetFields()
    }
  }
}
</script>

<style lang="less" scoped>
.wrapper {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  right: 0;
  background: #104468;
}
.login-box {
  width: 400px;
  height: 260px;
  padding: 20px;
  margin: 0 auto;
  margin-top: 180px;
  border-radius: 10px;

  border: 1px solid #eee;
  background: #fff;
  position: relative;
}
.logo {
  position: absolute;
  width: 120px;
  height: 120px;
  background: #f7f7f7;
  border-radius: 50%;
  overflow: hidden;
  top: -80px;
  left: 50%;
  margin-left: -60px;
  padding: 8px;
  img {
    border-radius: 50%;
    background: #fff;
  }
}
.demo-ruleForm {
  margin-top: 60px;
}
.title {
  margin-bottom: 30px;
  text-align: center;
  color: #666;
}
</style>
